The atmosphere would not have been like it is today. It would have had no oxygen. Instead, it would have been filled
with:

•hydrogen •methane •ammonia

This
kind of atmosphere is called a reducing atmosphere. It is just the kind of atmosphere that could support the organic chemistry
for first life. In fact, there is fossil evidence of ancient bacteria.

One
type of bacteria present then were the cyanobacteria or blue-green algaes. These bacteria appear to have had a very strong
cell-wall, (ie; plants),...

Gen. 1:11 And (Father Nature, Reality), “God,” said, Let the earth bring forth
"grass"i.e.; ("deshe," in the Hebrew meaning "the first sprouts of the Earth, and, then)," the
herb yielding seed, and the fruit tree yielding fruit after his kind, whose seed is in itself, upon the earth: and it was
so.

Gen. 1:12 And
the earth brought forth grass, i.e.; ("deshe," in the Hebrew meaning "the first sprouts of the Earth)" and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after
his kind: and (Father Nature, Reality), “God,” saw that it was good.

Big Bang Two: New Moon:
Theoretical and computational simulations explain how the Earth came to have its orbiting neighbor. The idea in a nutshell:
At the time Earth formed 4.5 billion years ago, other smaller planetary bodies were also growing. One of these hit earth late
in Earth's growth process, blowing out rocky debris. A fraction of that debris went into orbit around the Earth and aggregated
into the moon.